Géza Tóth
@GezaTothPhysics
Ikerbasque Research Professor working on quantum information, quantum optics, and quantum metrology.
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🔔 ¡#QuantumSpain se suma a la organización de la décima edición de la conferencia Quantum Information in Spain (ICE-10)! 📍 20–24 oct 2025 | Valencia 🖊️ ¡Ya puedes registrarte y presentar tu abstract! indico.ific.uv.es/event/7934/ #ICE10 #QuantumComputing #TalentQ
Entanglement depth is used to characterize the entanglement of many-particle systems and has been used in many experiments. For a tensor product of pure multi particle states, it is the size of the largest particle group. We look systematically for all similar quantities that…
Our review paper “Quantum metrology from a quantum information science perspective”, written by Iagoba Apellaniz and myself, was published 10 years ago. We hope that it helped to connect these two fields, mentioning many recent results on the quantum Fisher information and many…
📣 Animatu "Simulating Waveguide QED with Atomic Matter Waves" izeneko hurrengo hitzaldira! Dominik Schneble Doktoreak (Stony Brook University, USA), fenomeno kuantikoei buruzko informazio interesgarria aurkeztuko digu! 🗓️: 2024/12/11 ⏰: 11:40 📍: Gela 1. A1 @upvehu
This morning at #ICE9 we get into quantum metrology/entanglement as well as some real "people" sensing, with Robert Trényi, Szalay Szilárd and Ainitze Biteri. (The "people" thing is an #ICE9 inside joke)
Today #DIPCseminars 👇 📌 Multistability in quantum systems and related cavity QED experiments 👨🔬 Peter Domokos, HUN-REN Wigner Research Centre for Physics, Budapest 🗓️ Oct 18, 12:00 🏫 DIPC Seminar Room, In person seminar
🔴Yesterday at Tabakalera, we had a very special day. More than 240 @Ikerbasque researchers reflected on the future of research. Very inspiring day!
Our paper has just appeared in PRL journals.aps.org/prl/abstract/1…
In this paper, we consider metrology with several copies of the quantum state. Some very weakly entangled states can reach maximal metrological usefulness in the limit of many copies. We also make general statements about the usefulness of a single copy of pure entangled states…
Today #DIPCseminars 👇 📌 A simple electronic ladder model harboring Z4 parafermions 👨🔬 Laszlo Oroszlany, Eotvos Lorand University & Wigner RCP, Budapest 📆 17/11/2023, 12:00 🏫 DIPC Auditorium, In-person Seminar
In this work, we relate quantum Wasserstein distance to the quantum Fisher information, a central quantity in quantum metrology. We also write down inequalities with the quantum Wasserstein distance based on entanglement criteria.
Accepted and published in Quantum: Quantum Wasserstein distance based on an optimization over separable states by Géza Tóth and József Pitrik doi.org/10.22331/q-202…
big delegation from EHU quantum center @NquireC @upvehu at #ICE8 organized by @CESGA, @IGFAE_HEP @universidad_usc and @QuantumSpain_ES.
Continuamos con la intensa actividad del #ICE8, que celebramos en Compostela desde el lunes. En esta foto reunimos al conjunto de participantes de esta octava edición de #QuantumInformationinSpain 📸ICE-8 está organizado por CESGA, @IGFAE_HEP , @UniversidadeUSC, @QuantumSpain_ES
Maciej Lewenstein is talking at Azkuna Center in Bilbao about Quantum Simulations as part of IKUR Quantum Talks.
Symposium of the Alexander von Humboldt Foundation for Research Prize winners in Bamberg. I thank the Humboldt Foundation for their support, and for the wonderful meeting! I also thank Otfried Gühne, my host for the Bessel prize, for the long and very fruitful collaboration!
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